Carbureter.



"D.' 1H. HAYWooD.

GARBURETER.

APPLIOATION FILED 1120.24.1908.

Patented Dec. 27, 1910.

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D. H. HAYWOOD.

GARBURBTBR. A'PPLICAIIONV FILED DEO. 24,1908.

Patented Deo. 27, 1910.

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TINTTED STATES PATENT OFFICE.:

DANIEL HOWARD I-IAYWOOD, OF NEW YORK, N.

Y ASSIGNOR, BY MESNE ASSIGN- MENTS, T0 AMERICAN GAS 8c POWER GO., ACORPORATION 0F NEW JERSEY.

GARBURETER.

Specification of Letters Patent.

Patented Dec. 27, 1910.

Application led December 24, 1908. Serial No. 469,122.

To all whom it 'may concern:

Be it known that I, DANIEL HOWARD HAY- wooD, a citizen of the UnitedStates of America, and a resident of New York, county and State of NewYork, have in vented certain new and useful Improvements in Carbureters,of which the following is a specification, reference being had to theaccompanying drawings, forming a part thereof.

My invention relates to improvements in carbureters in which volatileliquids are evaporated and the product therefrom and intermingled withair or other gaseous or aeriform fluid to be enriched. In one form ofsuch apparatus fibrous or absorbent material is employed for receivingthe volatile liquid fed to the apparatus.

It is the main object of my present invention to provide a simple andefficient form of automatic control for the liquid feed, whereby thefibrous or absorbent material may be maintained at a uniform degree ofmoisture without being flooded, and a uniform quality of gaseous mixturethereby produced without the apparatus requiring constant attention.

My invention also consists in certain details of construction andarrangement of parts as will more fully appear hereinafter, and in orderthat my invention may be thoroughly understood, I will now describe anembodiment thereof, having reference to the accompanying drawings, andwill then point out the novel features in claims.

In the drawings: Figure 1 is a View in central section of a carbureterembodying my invention. Fig. 2 is a view in horizontal sectiontherethrough. Figs. 3 and i are detail views of a valve employed. Fig. 5is a view in central vertical section through a modified form of theapparatus. Fig. 6 is a view in horizontal section therethrough. Fig. 7is a detail view in side elevation of a part of the apparatus.

The apparatus in general comprises a shell and a plurality of trayswhich sub-divide the same horizontally into a plurality of chambers. Theshell shown consists of a vertical cylinder 10, a base 11, and aremovable cap or hood 12. The trays comprise a substantially cylindricalportion 13, a bottom 14, a perforated top 15, and an in'en he spacebetween the bottom 14: and the diaphragm 16 is preferably filled up withan absorbent fibrous material 17,-such as cotton waste,-while capillarythreads 18,- such as wicking or the like,-are woven backward and forwardbetween the two perforated diaphragms 15 and 16. In the eX- ample of myinvention shown in Figs. 1 and 2 the trays are supported upon trunnions19, here shown in the form of hollow pipes, the said trunnions beingarranged considerably to one side of the center of the trays and beingconveniently disposed alternately upon opposite sides ofthe center, aswill clearly appear by reference to Fig. 1. The trays are provided withcounterbalancing weights 2() which are arranged in each case upon theshort side of the tray,-that is to say, upon that side of the centerwhich comprises the smaller portion of the tra the said weights beingintended to be sufficient to normally lift the other end of the trayinto a substantially horizontal position. The tubes or pipes 19 whichconstituteV the axis or supports for the trays are preferably providedwith slots 21 therein, the said slots opening into the space in thetrays between the bottoms 14 and the diaphragm 16, whereby liquid to beevaporated may be fed into the trays therethrough. A valve piece 22 isdisposed upon the end of each said pipe 19, the said valve piece beingpreferably located at the exterior of the apparatus. This valve .piecehas an opening therethrough which communicates through a lateral openingin the said pipe with the interior thereof, and the face of the saidvalve piece engages a valve seat 23 adjustably secured upon a casing 24to which a supply pipe 25 is connected.

Liquid to be evaporated, which is supplied through the pipe 25, valvepiece 22, and pipe 19 to the interior of a tray, is first absorbed bythe material 17 and is then carried up by capillary attraction along thethreads 13. The trays are intended to be so balanced that when thefibrous material is saturated to a sufficient degree the increase ofweight carried by the tray will be sufficient to over-balance thecounterbalancing weight 20 and thereby to depress the end of the traywhich is opposite to the said weight 20. The effect of this will be torotate the pipe 19 which carries the tray, to a sufficient degree tomove the valve piece 22 across its seat' 23 to cut off further supply.After the liquid carried by the tray has been evaporated to a sufficientdegree to so reduce the weight carried by the tray that thecounterbalancing weight 20 will over-balance the opposite end of thetray, then the said tray will rock upon its support in the oppositedirection to that just noted, the weighted end moving downward and theopposite end moving upward. This will reverse the position of the valvepiece and will bring the ports and passages of the valve and its seatagain into register so as to permit a further supply of liquid to be fedinto the tray. By the foregoing means I am enabled to automatically feedthe required quantity of liquid into the apparatus in exact proportionto that evaporated, whereby the fibrous material therein may bemaintained at a uniform degree of moisture.

In the form of apparatus shown in Fig. 1 the trays are separated fromeach other by means of fixed diaphragms 36, the said diaphragms havingopenings 26 therethrough located alternately upon opposite sides of theapparatus, the trays having flat sides 27 between which and thecylindrical shell 10 are formed spaces or channels substantiallycorresponding to the said openings 26, whereby a continuous channel ofzig-zig form is provided throughout the apparatus. A supply pipe 28 forair or other aeriform or gaseous fluid to be enriched is connected withthe apparatus at the lower portion of the shell or casing so thatthe'air or the like will enter the lower-most chamber to thereby passacross the capillary threads and up through the opening 26, past theflat side 27 of the second tray, through the capillary threads of thesecond tray and so on, the passage of the current of air causing thekliquid to be rapidly evaporated from the capillary threads and thevapor to be intimately mingled with the said air. The mixed product isdelivered through a delivery pipe 29. I have shown means forautomatically controlling the admission of air through the pipe 28 sothat air will only be admitted as the product is dra-wn off through thepipe 29, the same consisting of a pressure operated valve 30, the motortherefor being' connected by means of a branch pipe 31 with the saiddischarge pipe 29.

In Figs. 5 and 6 I have shown an appa` ratus in which the trays are heldstationary, small trays or pans 32 of liquid being disposed beneath eachtray. The pans are pivoted upon hollow trunnions 33 which connect withthe supply pipe and are provided with counterbalance weights 34 similarto the weights 20 of the construction shown in Fig. 1. The bases of thetrays in the form of` apparatus shown in Figs. 5 and 6 have a depressedportion 35, the lower part of which has openings therethrough and isreceived within the pans 32. Liquid is fed into the pans instead ofdirectly into the trays, and the liquid is absorbed through the openingsinthe portions 35 by the ab` sorbent material 17 in the trays, and isthence carried by the capillary threads as in the other form ofapparatus. vWhen the absorbent material has absorbed all of the liquidit can carry the liquid will accumulate in the pan until the weightthereof will overbalance the weight 34 and will thereby carry offfurther supply. Upon evaporation taking place in the apparatus andfurther liquid being absorbed from the trays to take the place thereof,the weights 34 will finally be suiicient to reverse the position of thetrays to once more open the supply.

The principle of operation of the two forms of apparatus will be seen tobe entirely similar, the diierences being only structural. In bot-hcases the fibrous material is maintained in a substantially uniformcondition of moisture, liquid fed to the apparatus in excess of thatrequired, serving by its weight to close the inlet against furtheradmission of liquid.

What I claim is:

1. A carbureter comprising a casing, a plurality of superposed traystherein dividing the casing into a plurality of chambers, the said trayshaving openings therethrough arranged in alternate trays at oppositesides of the casing, and each tray having a depressed perforatedvportion in the base thereof, capillary threads arranged across the saidchambers, a pan for holding liquid, supported beneath the depressedperforated portion of the tray, and means for producing relativemovements between the pan and the tray for immersing the perforatedportion of the tray in the liquid contained in the pan. 4

2. A carbureter comprising a casing, a plurality of superposed traystherein dividing the casing into a plurality of chambers, the said trayshaving openings therethrough arranged in alternate trays at oppositesides of the casing, and each tray having a depressed perforated portionin the base thereof, capillary threads arranged across the saidchambers, a pan for holding liquid, supported beneath the depressedperforated portion of the tray, and means controlled by the weight ofthe liquid in the pan, for producing relative movements between the .panand the tray for immersing the perforated portion of the tray in theliquid contained in the pan.

3. A carbureter comprising a casing, and a plurality of superposed traystherein dividing the casing into a plurality of chambers, the said trayshaving openings therethrough arranged in alternate trays at oppositesides of the casing, and each tray having a perforated portion in thebase thereof, capillary threads across the said v chambers, absorbentmaterial arranged in chambers, absorbent material arranged in contactwith portions of the said capillary threads, a pan for holding liquidsupported beneath the depressed perforated portion of the tray, andmeans for producing relative movements between the pan a'nd the tray forimmersing the perforated portion of the tray in the liquid contained inthe pan.

4. A carbureter comprising a casing, and a plurality of superposed traystherein dividing the casing into a plurality of chambers, the said trayshaving openings therethrough arranged in alternate trays at oppositesides of the casing, and each tray having a perforated portion in thebase thereof, capillary threads across the said contact with portions ofthe said capillary` threads, a pan for holding liquid supported beneaththe depressed perforated portion of the tray, and means controlled bythe weight of the liquid in the pan for producing relative movementsbetween the pan and the tray for immersing the perforated portion of thetray in the liquid contained in the pan.

5. A carbureter provided with an air channel, a tray for supportingabsorbent material in proximity to the air channel, the said tray havinga perforated portion, a pivoted tray or pan for containing liquid intowhich the said perforated portion is adapted tobe immersed, and meanscontrolled by the movements of the said tray or pan upon its pivotalsupport for regulating the supply of liquid thereto.

6. A carbureter provided with an air channel, a tray for supportingabsorbent material in proximity to the air channel, the said tray havinga perforated portion, a pivo-ted tray or pan for cont-aining liquid intowhich the said perforated portion is adapted to be immersed, and meanscontrolled by the movements of th-e said tray or pan upon its pivotalsupport for regulating the supply of liquid thereto, the said pan beingbalanced to move about its pivotal support after a predeterminedquantity of liquid has been received thereby.

7. A carbureter provided with an air channel, a tray for supportingabsorbent material in proximity to the air channel, the said tray havinga perforated portion in the lower part thereof, a pan for holding liquidsupported beneath the said perforated portion of the tray, and means forproducing relative movements between the said pan and tray for immersingthe perforated portion of the tray in the liquid contained in t-he pan.

8. A carbureter provided with an air channel, a tray for supportingabsorbent material in proximity to the air channel, the said tray havinga perforated portion in the lower part thereof, a pan for holding liquidsupported beneath the said perforated portion of the tray, andfmeanscontrolled by the weight of the liquid in the pan for producing relativemovements between the said pan and tray for immersing the perforatedportion of the tray in the liquid contained in -the pan.

9. A carbureter provided with an air channel, a tray for supportingabsorbent material in proximity to the air channel, the said tray havinga perforated portion in the lower part thereof, a pan for holding liquidsupported beneath the said perforated portion of the tray, means forproducing relative movements between the said pan and tray for immersingthe perforated portion of the tray in the liquid contained in the pan,and means controlled by the said relative movements for regulating thesupply of liquid to the pan.

10. A carbureter provided with an air channel, a tray for supportingabsorbent material in proximity to the air channel, the said tray havinga perforated portion in the lower partthereof, a pan for holding liquidsupported beneath the said perforated portion of the tray, meanscontrolled by the weight of liquid in the pan, for producing relativemovements between the said pan and tray for immersing the perforatedportion of the tray in the liquid contained in the pan, and meanscontrolled by the said relative movements for regulating the supply ofliquid to the pan.

11. In a carbureter containing an air channel, the combination with atray for receiving liquid to be evaporated, and a hollow pivotal supportfor the said tray, of means for supplying such liquid through the saidhollow pivotal support to the tray, and means controlled by pivotalmovement of the tray for regulating the amount of the liquid fedthereto.

12. In a carbureter containing an air channel, the combination with atray for receiving liquid to be evaporated, and a hollow pivotal supportfor the said tray, of means for supplying such liquid through the saidhollow pivotal support to the tray, and means controlled by pivotalmovement of the tray for regulating the amount of the liquid fedthereto, the said tray being balanced to move about its pivotal supportafter a predetermined quantity of liquid has been received thereby.

D. HOWARD HAYVVOOD.

Witnesses LYMAN S. ANDREWS, Jr., .T C. HARTMANN.

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